Day i do not know

191. Number of 1 Bits/Solution.cs

@@ -0,0 +1,15 @@
+namespace _191._Number_of_1_Bits;
+
+public class Solution
+{
+    public int HammingWeight(uint n)
+    {
+        int count = 0;
+        while (n > 0)
+        {
+            count+=(int)(n & 1);
+            n >>= 1;
+        }
+        return count;
+    }
+}